Difference between revisions of "Chaosnet"

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m (Jnc moved page CHAOSnet to Chaosnet over redirect: Original docs use this capitalization)
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'''Chaosnet''' was the name for both an [[internetworking]] [[protocol suite|protocol family]], and an early [[Local area network|LAN]] technology, both invented at the [[MIT AI Laboratory]]; the latter was the LAN on which the protocol first ran.
 
'''Chaosnet''' was the name for both an [[internetworking]] [[protocol suite|protocol family]], and an early [[Local area network|LAN]] technology, both invented at the [[MIT AI Laboratory]]; the latter was the LAN on which the protocol first ran.
  
The LAN was a [[CSMA-CD]] system modeled on the [[Xerox PARC]] 3 megabit/second [[Ethernet]], running over [[cable TV]] cable. The protocol was later made to run over standard 10 megabit/second Ethernet, which largely supplanted the Chaosnet hardware.
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The LAN was a [[CSMA-CD]] system modeled on the [[Xerox PARC]] 3 megabit/second [[Ethernet]], running over [[cable TV]] cable. The protocol was later made to run over standard 10 megabit/second Ethernet, which largely supplanted the Chaosnet hardware. (On Ethernet, the [[Address Resolution Protocol]] is required to provide [[mapping]]s from 16-[[bit]] Chaos [[address]]es to the 48-bit addresses used by Ethernet.)
  
 
The protocol provided a [[reliable byte stream]] service, but also had a [[datagram]] mode.
 
The protocol provided a [[reliable byte stream]] service, but also had a [[datagram]] mode.

Revision as of 10:03, 27 October 2021

Chaosnet was the name for both an internetworking protocol family, and an early LAN technology, both invented at the MIT AI Laboratory; the latter was the LAN on which the protocol first ran.

The LAN was a CSMA-CD system modeled on the Xerox PARC 3 megabit/second Ethernet, running over cable TV cable. The protocol was later made to run over standard 10 megabit/second Ethernet, which largely supplanted the Chaosnet hardware. (On Ethernet, the Address Resolution Protocol is required to provide mappings from 16-bit Chaos addresses to the 48-bit addresses used by Ethernet.)

The protocol provided a reliable byte stream service, but also had a datagram mode.

History

Chaosnet was initially called CAIOSnet.

Implementations

Hardware, and simulations

External links

  • AI memo 628 - Includes chapters on ITS, TOPS-20, Lisp Machine, and Unix implementations.
  • SYSDOC;CHAORD > - Initial design
  • MOON;AMBER > - Another Moon document
  • Chaosnet - Detailed descriptions of both the hardware system, and the protociol(s)
  • CHAOS; - hardware interface designs, etc.